Add feature checks to shader builtin tests

Add feature checks to shader builtin tests

Some shader builtin tests use SampleId and SamplePosition BuiltIns
in shaders, which both require the SampleRateShading OpCapability
and the sampleRateShading Vulkan feature. This CL adds the missing
feature checks when required by the shaders.

Affects:

dEQP-VK.pipeline.multisample_shader_builtin.sample_id.*
dEQP-VK.pipeline.multisample_shader_builtin.sample_position.*

Components: Vulkan

VK-GL-CTS issue: 1744

Change-Id: I4557b5cd79191f7ca1202562416d12d3b1d8ce60
(cherry picked from commit 3f2ce1e5bcf568fe0a65a4ed638e0589b8694482)